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A and B are fixed points such that AB=2a...

A and B are fixed points such that AB=2a. The vertex C of `DeltaABC` such that `cotA+cotB`=constant. Then locus of C is

A

`bot`to aB

B

parallel to AB

C

Inclined at an angle `30^(@)` to AB

D

None of these

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The correct Answer is:
B
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